66245411 has 2 divisors, whose sum is σ = 66245412. Its totient is φ = 66245410.

The previous prime is 66245401. The next prime is 66245437. The reversal of 66245411 is 11454266.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66245411 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (66245401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33122705 + 33122706.

It is an arithmetic number, because the mean of its divisors is an integer number (33122706).

Almost surely, 2^66245411 is an apocalyptic number.

66245411 is a deficient number, since it is larger than the sum of its proper divisors (1).

66245411 is an equidigital number, since it uses as much as digits as its factorization.

66245411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 29.

The square root of 66245411 is about 8139.1283931389. The cubic root of 66245411 is about 404.6242738023.

Adding to 66245411 its reverse (11454266), we get a palindrome (77699677).

The spelling of 66245411 in words is "sixty-six million, two hundred forty-five thousand, four hundred eleven".